Ответ:

  1. I'm reading a good book at the moment. (read)
  2. I can't talk now. We are having dinner. (have)
  3. My brother is playing football in the park. (play)
  4. My parents aren't here. They are shopping for a new printer. (shop)
  5. My sister is buying a present for her friend. (buy)
  6. We are watching an adventure film on TV. (watch)